Spain's youth unemployment is astronomical (55%+). Young people with useful skills are increasing choosing to emigrate -- With lots of encouragement too. e.g. Germany is actively recruiting Spanish Engineers to fill labour gaps there.
Without structural changes, no amount of youth is going to dig them out.
Yes, and in recent years Spaniards have been immigrating to South America to take incredible cuts in pay to do jobs (Often regardless of legal status) that require few of the qualifications, if any, they had earned in Spain.
As long as we are wildly off topic, a lot of young people in Japan are "encouraged" to move to Bangkok to do Japanese customer service jobs, where they can be paid less.